Bag



FIG. 1 is a perspective view of the bag, showing my new design;

FIG. 2 is a side view of the bag of FIG. 1, the opposing side view being a mirror image thereof;

FIG. 3 is a front view of the bag of FIG. 1, the back view being a mirror image thereof; and,

FIG. 4 is a bottom view of the bag of FIG. 1. 

The ornamental design for a bag, as shown and described. 